Replacing Xenon HID Headlight Ballast on 2011 Vauxhall Insignia without removing complete bumper.

A video documenting the trial s and tribulations of changing the Xenon HID D1S headlight ballast unit in my 2011 Vauxhall Insignia after an over zealous jet wash user at a local car wash got water into my headlamp.
Some videos specify removing the whole of the front bumper but I succeeded eventually in removing the unit from the car, changing the ballast and refitting it by just removing half of the fixings for the bumper.

WARNING: THERE ARE HIGH VOLTAGES IN THIS AREA AND YOU SHOULD DISCONNECT THE BATTERY BEFORE WORKING ON THE HEADLAMP OR BALLAST.

ANOTHER WARNING: DO NOT COPY MY MISTAKE OF MISSING REMOVAL OF A BOLT, WATCH WHOLE VIDEO TO SEE WHICH BOLT I FORGOT. DOH!!

FURTHER WARNING: I'm not a mechanic but a hobbyist who likes to keep my garage bills down. I didn't buy OEM Parts for this repair as I don't plan on keeping the car much longer. Non-OEM parts might be risky and probably shorter lives but they're much more cost effective in my mind. I'm obviously not an expert so if you have any questions or concerns you should talk to someone qualified.